/proc/4/task/6/root/proc/thread-self
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
7b9b40000-7fff36fdc000 ---p 00000000 00:00 0 [rollup]Rss: 111784 kBPss: 111014 kBPss_Anon: 56332 kBPss_File: 54682 kBPss_Shmem: 0 kBShared_Clean: 1536 kBShared_Dirty: 0 kBPrivate_Clean: 53916 kBPrivate_Dirty: 56332 kBReferenced: 111784 kBAnonymous: 56332 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB